<p>My NYC daughter wears leggings, plaid shirts, carries a Nalgene, no Tevas, though. Don’t worry. I agree that the Columbia tour guide was a jerk. Maybe that’s why you are not enrolled there! One class up there does not a matriculation make. Juilliard is lucky to have you, and you will be fine as long as you are comfortable wearing what you want. If you want to change your style, by all means change it. But do it for yourself. NYC is such a big place that anyone and everyone fits in. Congratulations!</p>